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Question- A particular monochromatic green light source emits light with a frequency of 594 THz. What is the energy of a photon emitted from this light source?
Write solution with complete explanation of required steps
what is the internal energy change of a gas gives off 312 of heat while being compress 862mL by a pressure of 1.64 bar. what are internal energy change in surrounding and universe for the process
Calculate the molarity of a solution of HBr if 34.80 mL of the HBr solution neutralize 0.834 g of Na2CO3. The following is the unbalanced equation for the reaction
An aqueous copper(II) sulfate solution is electrolyzed for 3 hours with a 1.8 ampere current
osmium has a density of 22.6 g/cm3. what volume (in mL) would be occupied by a 21.8 g sample of osmium?
You are asked to determine the strength of an acid by titration with NaOH. Exactly 50.0 ml of the acid are titrated with 0.300M NaOH and the equivalence point is reached at exactly 20.0 ml of NaOH. What is the molar strength of the acid
Presuming merely translational degrees of freedom or freedom of motion, Explain what is the change in entropy (S) of the system caused by opening the stopper on this container
1. a woman requires taking ibuprofen twice daily in 625mg amount. each pill in the bottle is 250 mg then determine the
Problem- What is the change in temperature (in oC) when a 37.9 g sample of graphite (specific heat = 0.720 J/(g K)) evolves (-11.93) kJ of heat
Indicate which layer( aqueous or organic) each component in the reaction will mainly reside in ( for both products and reactants ) for all the following three reactions: (1)Show the reaction of 1-naphthylamine hydrochloride with sodium hydroxide.
A radio station's channel, such as 100.7 FM or 92.3 FM, is actually its frequency in megahertz (MHz), where 1MHz=10^6 Hz. Calculate the broadcast wavelength of the radio station 99.10 FM.
Explain why is it advantageous to have a combined cycle gas turbine electrical generating facility rather than just a steam turbine facility? Explain why is the actual efficiency of a fuel cell less than the theoretical value
Reaction of 1-methylcyclopentene (above) with HBr might, in principle, lead to a mixture of two alkyl bromide addition products. Draw these two alkyl bromides.
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